diff --git a/Octokit/Helpers/ApiUrls.Keys.cs b/Octokit/Helpers/ApiUrls.Keys.cs
index b936322e..327f11ef 100644
--- a/Octokit/Helpers/ApiUrls.Keys.cs
+++ b/Octokit/Helpers/ApiUrls.Keys.cs
@@ -6,11 +6,18 @@ namespace Octokit
     {
         static readonly Uri _currentUserKeysUrl = new Uri("user/keys", UriKind.Relative);
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> to retrieve keys for the current user.
+        /// </summary>
         public static Uri Keys()
         {
             return _currentUserKeysUrl;
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> to retrieve keys for a given user.
+        /// </summary>
+        /// <param name="userName">The user to search on</param>
         public static Uri Keys(string userName)
         {
             return "users/{0}/keys".FormatUri(userName);
diff --git a/Octokit/Helpers/ApiUrls.cs b/Octokit/Helpers/ApiUrls.cs
index 68f91d92..84400bbf 100644
--- a/Octokit/Helpers/ApiUrls.cs
+++ b/Octokit/Helpers/ApiUrls.cs
@@ -681,7 +681,7 @@ namespace Octokit
         }
 
         /// <summary>
-        /// Returns the <see cref="Uri"/> for the specified commit.
+        /// Returns the <see cref="Uri"/> for the specified gist.
         /// </summary>
         /// <param name="id">The id of the gist</param>
         public static Uri Gist(string id)
@@ -689,26 +689,44 @@ namespace Octokit
             return "gists/{0}".FormatUri(id);
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> for the forks of a given gist.
+        /// </summary>
+        /// <param name="id">The id of the gist</param>
         public static Uri ForkGist(string id)
         {
             return "gists/{0}/forks".FormatUri(id);
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> for all public gists.
+        /// </summary>
         public static Uri PublicGists()
         {
             return "gists/public".FormatUri();
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> for all started public gists.
+        /// </summary>
         public static Uri StarredGists()
         {
             return "gists/starred".FormatUri();
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> for all gists for a given user.
+        /// </summary>
+        /// <param name="user">The user to search for</param>
         public static Uri UsersGists(string user)
         {
             return "users/{0}/gists".FormatUri(user);
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> to star a given gist.
+        /// </summary>
+        /// <param name="id">The id of the gist</param>
         public static Uri StarGist(string id)
         {
             return "gists/{0}/star".FormatUri(id);
diff --git a/Octokit/Helpers/CollectionExtensions.cs b/Octokit/Helpers/CollectionExtensions.cs
index b9d4d04d..15cc101b 100644
--- a/Octokit/Helpers/CollectionExtensions.cs
+++ b/Octokit/Helpers/CollectionExtensions.cs
@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using System.Linq;
 
 namespace Octokit
 {
diff --git a/Octokit/Helpers/EnumExtensions.cs b/Octokit/Helpers/EnumExtensions.cs
index 8b8dcc57..15ac0640 100644
--- a/Octokit/Helpers/EnumExtensions.cs
+++ b/Octokit/Helpers/EnumExtensions.cs
@@ -9,7 +9,7 @@ namespace Octokit
     static class EnumExtensions
     {
         [SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")]
-        public static string ToParameter(this Enum prop)
+        internal static string ToParameter(this Enum prop)
         {
             if (prop == null) return null;
 
diff --git a/Octokit/Helpers/HttpClientExtensions.cs b/Octokit/Helpers/HttpClientExtensions.cs
index bb62925d..2f401cc3 100644
--- a/Octokit/Helpers/HttpClientExtensions.cs
+++ b/Octokit/Helpers/HttpClientExtensions.cs
@@ -1,4 +1,5 @@
-using System.Threading;
+using System;
+using System.Threading;
 using System.Threading.Tasks;
 using Octokit.Internal;
 
@@ -6,6 +7,7 @@ namespace Octokit
 {
     public static class HttpClientExtensions
     {
+        [Obsolete("This will be removed in a future release")]
         public static Task<IResponse<T>> Send<T>(this IHttpClient httpClient, IRequest request)
         {
             Ensure.ArgumentNotNull(httpClient, "httpClient");